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optimize glyph images data copy into 4 byte aligned images 

Differential Revision: https://phab.enlightenment.org/D7461
This commit is contained in:
Ali Alzyod 2018-12-17 08:28:52 +00:00 committed by Derek Foreman
parent 9201fc5a65
commit f78ef852da
1 changed files with 14 additions and 12 deletions
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26
src/modules/evas/engines/gl_common/evas_gl_font.c
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@ -5,7 +5,7 @@ evas_gl_font_texture_new(void *context, RGBA_Font_Glyph *fg)
{
Evas_Engine_GL_Context *gc = context;
Evas_GL_Texture *tex;
int w, h, j, nw, fh, x, y;
int w, h, j, nw, fh, y;
DATA8 *ndata, *data, *p1, *p2;
if (fg->ext_dat) return fg->ext_dat; // FIXME: one engine at a time can do this :(
@ -22,19 +22,21 @@ evas_gl_font_texture_new(void *context, RGBA_Font_Glyph *fg)
// expand to 32bit (4 byte) aligned rows for texture upload
nw = ((w + 3) / 4) * 4;
ndata = alloca(nw *h);
if (!ndata) return NULL;
for (y = 0; y < h; y++)
{
// if image already (4 byte) aligned rows then assign old image data to new data(ndata) to
if(nw == w){
ndata = data;
} else {
ndata = alloca(nw *h);
if (!ndata) return NULL;
// else copy row by row
for (y = 0; y < h; y++)
{
p1 = data + (j * y);
p2 = ndata + (nw * y);
for (x = 0; x < w; x++)
{
*p2 = *p1;
p1++;
p2++;
}
}
memcpy(p2,p1,w);
}
}
fh = fg->fi->max_h;
tex = evas_gl_common_texture_alpha_new(gc, ndata, w, h, fh);
if (!tex) goto done;